Improvement in machine poe soaefing leather



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CHARLES Ht.- HELMS., 0F POUGHKEEPSIIL 4NEW YORK.

Letters Paten: No. 80,952, daad August 11,v 186s.-

- IMPROVEMENT I MACHINE FOR SGARFIIIG; LEATHER.

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TO ALL WHOM IT MAY QONGERN: v K

VBe it known that :[CHARLEsI-I: HELMS, of Poughkeepsie, Dutchess county, andState of New York, have invented certain new and useful Improvements in Machines for Svcarfin'g Leather for boots, shoes, and-other,l purposes; and I do hereby-declare that the following is'afull description of the saine.

The nature of my invention consists in eombiningwith. a horizontally-adjusted straight-edge, cutter or knife, two feed-rollers, having their periphcries bevelled in opposite directions, so that the` horizontally-adjusted cutter, opposed to the space between the said rollers, will form an oblique cut across the face of the leather as it passes through the said space interyeningbetweeu the rollers. v Y y I:But to describe my invention more particularly, I will rcffr to ,the accompanying drawings formingal part of this specification, the same letters of reference, wherever they occur, referring to like parts.

Figure l'is a front view of themachine, showing the lower portion of the frame broken` ol. Figure 2 is a vertical cut sectionofthe same, through the line :z: a', iig. 1. Figure 3 is a plan v`iew of the machine, through' the line :e2 af, {ign-1.4 Y Letter A represents a metal stand or frame, and a shaft 'passing through the body of it. On thefront end of t/h/is shaft is secureda cone-shaped i-ollei', c,'whose smallest diameter projects outwards: Above'and parallel with the shaft is a second shaft, D, through the frame, having on its front end another cone-shaped roller, E,'whose smallest diameter projects inwards. The shaft of this roller is secured intoan adjustable box, F, working up and down within a chamber, G, formed in the upper side of the frame of the machine, and having on the headof it a spiral spring, H, confined under a cap-plate, I, fcr the' purpose of allowing the roller E to have an elastic self-adjustable pressure onthe leather in passing between the rollers. To admit of this selfadjusting motion in the frame of the machine, the openings through it for theishaft D are made oblong, as shown at J. .l Letter K is a'horizental adjustable cutter or knife, secured, by a set-screw, L, to a seat formed on one side of the frame of the machine, and 'on a straight line between -the opposing, edges or faces of the two rollers. The object ofthis is to make an obliquecut across the face of the leather .passing between the rollers. This' 'will berobvious, for the reason that the faces of the two rollers cause the leather to pass between them on a slant, and, as the edge of-the cutter is perfectly horizontal, that is, touches the inner edge of the periphery of the lower roller and the outer edge of the periphery of the upperrollcr, it produces a cutobliquely across the face of the piece of leather-,aand thus produces a'thin and uniform scarting of its edges. To enable the cutter 'to act with a drawing-cut, its edge is made projecting from its outer point to its inner point, as shown at mand n. For the purpose ofgraduating the width of the scarf, an adjustable gauge, P, is secured to the frameof the machine, of such ashape and Yin such a position as tcprcject between the two rollers at the entering `side of them.

Letters R and S are two cog-wheels on the shafts of the rollers for communicating uniform rotary motion to them by means of any suitable crank or pulley-motion applied to the roller-shaft B.

For the purpose of causing the rollers to carry the leather firmly forward against the edge 0f the cutter, the roller E has its edge'r periphery serrated. It will be obvious that either roller or both may be serrated, and also that the cutter will operate to make a scarf, though but one of the rollers were made tapering, and the other of uniform diameter. f y

Having now described my invention', I will proceed to set forth what I' claim and `desire to secure by Letters Patent'of the United States. l

claim theeombination. of thenstatonary horizontal cutter with the rollers c and E, or either of them, having their edges or peripheries bevelled obliquely to the edge of the cutter, substantially as hereinbefore described'and for the purposes set forth.

C. H. HELMS.

Witnesses: v

FRANKLIN BAnRI'r'r, CHARLES L. BARBIN. 

